655394 has 12 divisors (see below), whose sum is σ = 1011654. Its totient is φ = 318384.

The previous prime is 655387. The next prime is 655399. The reversal of 655394 is 493556.

It is a happy number.

655394 is nontrivially palindromic in base 8.

It can be written as a sum of positive squares in only one way, i.e., 543169 + 112225 = 737^2 + 335^2 .

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 655394.

It is not an unprimeable number, because it can be changed into a prime (655399) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 8942 + ... + 9014.

2⁶⁵⁵³⁹⁴ is an apocalyptic number.

655394 is a deficient number, since it is larger than the sum of its proper divisors (356260).

655394 is an equidigital number, since it uses as much as digits as its factorization.

655394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 209 (or 142 counting only the distinct ones).

The product of its digits is 16200, while the sum is 32.

The square root of 655394 is about 809.5640802308. The cubic root of 655394 is about 86.8628658242.

The spelling of 655394 in words is "six hundred fifty-five thousand, three hundred ninety-four".